Answer:
Degree of ionization = 0.0377
pH of the solution = 1.769
Explanation:
Initial concentration of HF = 0.45 M
Initial 0.45 0 0
At equi 0.45 - x x x
Equilibrium constant = ![\frac{[H^+][F^-]}{HF}](https://tex.z-dn.net/?f=%5Cfrac%7B%5BH%5E%2B%5D%5BF%5E-%5D%7D%7BHF%7D)
![6.8 \times 10^{-4}= \frac{[x][x]}{0.45 - x}](https://tex.z-dn.net/?f=6.8%20%5Ctimes%2010%5E%7B-4%7D%3D%20%5Cfrac%7B%5Bx%5D%5Bx%5D%7D%7B0.45%20-%20x%7D)
x = 0.017 M
x = Cα
α = Degree of ionization
C = Concentration
Degree of ionization = 
![pH = -log[H^+]](https://tex.z-dn.net/?f=pH%20%3D%20-log%5BH%5E%2B%5D)
[H^+]=0.017 M
![pH = -log[0.017]](https://tex.z-dn.net/?f=pH%20%3D%20-log%5B0.017%5D)
= 1.769
Im assuming that the 2 is a sub of the Al and not the # for O and that u made a type of AL which is Al
its been a while but
Al2O3 + 6HCl = 2ALCl3 + 3H2O
<u>Answer</u>:
If beaker tongs are not available, we could use crucible tongs to handle the hot beaker
<u>Explanation</u>:
Crucible tongs is tool shaped like a scissor where instead of two blades, two pincers or pieces of metals that concave together is used. They help us to hold or grasp a hot beakers, flasks or even small beakers. It is difficult for the people to catch or hold the hot beakers directly. So crucible tongs plays a vital role when burning, or using hot objects in the chemical laboratory.Crucible tongs are generally made with strong metal such as nickel, stainless or oxidized steel so as to withstand very high and extreme temperatures.
Molarity of the solution is (number mol of solute/Volume(in L) of the solution),
It is measured by mol/L
Answer:
Formula of Mole is,
Mole = Mass / M.Mass
Mass is same for all compounds but M.Mass is different for all.
1. C₃H₈
Mole = 100 g / 44.1 g/mol
Mole = 2.27 moles
2. C₂H₆O
Mole = 100 g / 46.07 g/mol
Mole = 2.12 moles
3. C₃H₆O
Mole = 100 g / 58.08 g/mol
Mole = 1.72 moles
